This is an alpha version of a WolfGL3D source port, which seems to be very promising with its graphical features. It already supports High-Resolution textures, MD3 models and floor-ceilings rendering. This port also supports some sort of dynamic lighting. Press 'G' to turn on flashlight if it's too dark in the beginning of the map.

This port is not very playable at the moment, but it is surely worth a try to see its interesting visuals.